A method is provided for more effectively agitating a vibration responsive liquid in a container to enhance the qualities of the liquid. Vibration energy that is within the audio frequency spectrum and that corresponds to one or more resonant frequencies of the liquid filled container is coupled to the wall of the container. One or more vibration responsive sensors deployed in or on a container containing the vibration responsive liquid are used to determine the container's resonant frequencies. The method is particularly used in the aging of alcoholic beverages.

A system and method for improved fermented beverage concentrate is described. One embodiment includes a method for producing a fermented beverage concentrate, the method comprising: fermenting a first fermentable aqueous product to produce a base product; and performing a nesting process on the base product, wherein the nesting process comprises: a concentration phase wherein at least a portion of the base product is passed through a separation system and a retentate is returned to the base product to produce a nesting solution, a water nest wherein water is added to at least a portion of the nesting solution and passed through the separation system, and a fermentable aqueous product nest wherein a second fermentable aqueous product is added to at least a portion of the nesting solution and passed through the separation system to increase the concentration of the nesting solution.